Wrong Question Variation Engine

Problem

Retrying wrong questions often becomes “copy the problem and solve it again,” but the real gap may be a missing concept, weak method, or careless reading. This skill turns practice into error diagnosis: classify the error type, locate the cognitive gap, and design variation problems around that gap.

How It Works

• Input: original question, grade level, subject (Math, English, or Chinese)
• Diagnosis chain: error type, understanding gap, grade boundary, answer-domain constraint
• Graduated variations:
• Variation 1: parallel replacement to check stable method reuse
• Variation 2: adjust one condition to test flexible thinking
• Variation 3: transfer the relation into a new scenario
• Output: cause diagnosis, three problems, reference answers and explanations, and a self-check list with clean formatting

Boundaries

Best for learning-focused error review, with strict “no out-of-scope” and “same answer domain” constraints. If the original question is incomplete, grade context is unclear, or the user only wants a random problem bank, this is not a full replacement for a teaching-research tool.